The is the part of the brain thought to be responsible for a person's hunger drive.

 Lateral hypothalamus tells you your hungry and the Ventromedial Nuclei gives a signal to tell you to stop eating

The hypothalamus is the portion of the brain responsible for a person's hunger drive. This part of the brain is also responsible for temperature regulation, thirst, sleep, mood, sex drive, hormone control.

Neptune is the eighth planet from the sun. it was the first planet to get its existence predicted by  mathematical calculations  before it was actually seen through a telescope on sept. 23, 1846. irregularities in the orbit of  uranus  led french astronomer alexis bouvard to suggest that the gravitational pull from another celestial body might be responsible. german astronomer johann galle then relied on subsequent calculations to   spot neptune via telescope. previously, astronomer galileo galilei sketched the planet, but he mistook it for a star due to its slow motion. in accordance with all the other planets seen in the sky, this new world was given a name from greek and roman mythology — neptune, the roman god of the sea.